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In many cases, the impact of the automatic transmission is not the damage of the internal valve body, but the stubborn dirt and impurities inside, especially in the internal dirt and impurities of the valve body to accumulate and form a blockage, resulting in the inability to achieve effective adjustment of oil pressure, resulting in the occurrence of the problem of stagnation impact and slippage. At the same time, the problem of high temperature of the gearbox cannot be ignored. According to the Automatic Transmission Repair Association, it is called
More than 90% of all faulty automatic transmissions are caused by overheating. High temperatures can damage the quality and friction characteristics of the automatic transmission fluid, increase friction and wear, and transmission noise will follow, as well as sludge (impurities or dirt) will also be generated inside the transmission (e.g. valve body), causing the transmission to crash and shock. If the temperature exceeds 120 °C, the rubber sealing material will begin to harden, eventually leading to leakage and reduced hydraulic pressure.
If the temperature is higher, the gearbox starts to slip, which in turn causes the temperature to rise even higher. (Audi and other high-end models will call the police and enter the transmission protection mode) If it is not solved in time, the transmission will be scrapped. Therefore, only by removing the stubborn dirt and impurities in the gearbox and effectively controlling the working temperature of the gearbox can the gearbox problem be completely solved and prevent its recurrence.
This is also the key to achieving "no dismantling and repairing to solve transmission failures", which can be described in detail.
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The gap must be adjusted, and I am not afraid of 10,000 just in case.
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The engine, chassis and gearbox are the three major components of the car, and their role and significance are self-evident. As the top two transmission companies, Aixin and ZF account for almost 50% of the global market. The transmission of Aisin 09G is also one of the hottest products, so what are the common failures and durability of this gearbox?
The gearbox doesn't jump gears when accelerating, and the more you press the throttle, the more empty the gears of the gearbox slip, and sometimes it's more difficult to downshift or upshift.
Too many impurities in the transmission oil cause the shift piston to wear, resulting in the transmission oil can not be relieved to shift gears, and the transmission oil needs to be changed regularly.
Gear shifts are blocked, shocked. The frequent reciprocating motion of each control valve and solenoid valve leads to premature failure. Due to the high accuracy of these control valves, a slight deviation will cause unstable oil pressure, resulting in poor working of the solenoid valve, and the control in the team is not in place, and eventually the shift impact will occur.
Although the 09G gearbox has been complained about by the owner of various problems, the durability is okay. The quality of Aisin gearboxes is still trustworthy. In addition to imperfect design and technology, a large part of common transmission problems are caused by the habits of car owners or long-term driving in bad road conditions.
Therefore, it is a reasonable way to treat the transmission problem rationally, develop good car habits, and maintain it regularly.
Next, we will introduce the disassembly and assembly method of automobile transmission >>>More
Go to the library and look for it, and find a lot of it.
The location of the transmission fault varies according to the location, as follows: >>>More
Hello, the automatic transmission oil definitely needs to be replaced, generally three years or 60,000 kilometers can be replaced. After a long time, if it is not replaced, it is easy to cause damage to the gearbox.
The vehicle cannot afford to run, including the absence of high speeds, i.e., no matter how it is driven, the vehicle cannot reach 100 km h; A certain speed section is very slow, that is, the throttle is very heavy but the vehicle is still slowly speeding up, the response is very poor, the lack of hearty feeling, this kind of situation includes the engine speed is very slow, that is, the speed of the engine can not come up and the speed is very fast but the speed is not fast two situations so this is a relatively complex problem, the normal test standard is that the vehicle starts, properly press the accelerator pedal, the engine speed is steadily increased, the vehicle accelerates, generally around 2500 rpm, the speed is between 25 and 30 kilometers, and the automatic transmission enters the first shift, The speed of the engine gradually rises after the appropriate fall, while the speed is significantly accelerated, the second shift at 40 kilometers of the vehicle, the gearbox will be further accelerated after entering the third gear, and the speed of 60 kilometers will enter the high-end position of the gearbox, and the whole process of the engine will be lifted again after the appropriate downshift in the process of upshifting, no idling, no skidding. In the case of the general engine displacement of the displacement of the vehicle running smoothly, the speed of the engine 2500 3000 rpm can reach 100 kilometers per hour, if it is necessary to further increase the speed, the engine speed needs to increase synchronously, if the engine refueling is very stuffy, not smooth, the engine needs to be overhauled, if the engine accelerates strongly, it means that the gearbox internal gear is wrong, the clutch is burned, and the knob has mechanical failure.